Insurance Commissioner Mike Chaney told The Sun Herald that he plans to schedule the hearing for some time in January.
The Mississippi Insurance Department concluded in September the increase was unjustified, but Allstate argues it is warranted. The commissioner usually hears appeals.
Allstate has asked that Chaney appoint someone else because he already has stated he will not approve the increase without a court order.
Allstate requested the rate hike in March, after Chaney had rejected the company's request for a 65 percent increase.